Thanks, for the quick reply. A moment ago, my box booted. I will try to get the error reported.
but still has problem:
My box failed at:
checking all filesystems....
/dev/hda1 is mounted. e2fsck: can't continue, aborting
* Fsck could not correct all errors, manul repair needed.

Give root passwd for maintence(or type.......)

Then, I manually, e2fsck /dev/hda1. But it doesn't work when I reboot again.
My /etc/fstab is the same as the handbook.

/dev/hda1 is ext2,
/dev/hda2 is swap
/dev/hda3 is Sun DIsklable the whold disk
/dev/hda4 is ext3 for /usr
/dev/hda5 is ext3 for /var
/dev/hda6 is ext3 for /home

do you have the ext2 support enabled ? (built-in)_________________$ ruby -e'puts " .:@BFegiklnorst".unpack("x4ax7aaX6ax5aX15ax4aax6aaX7ax2aX5aX8 \
axaX3ax8aX4ax6aX3aX6ax3ax3aX9ax4ax2aX9axaX6ax3aX2ax4ax3aX4aXaX12ax10aaX7a").join'

Thanks, for the quick reply. A moment ago, my box booted. I will try to get the error reported.
but still has problem:
My box failed at:
checking all filesystems....
/dev/hda1 is mounted. e2fsck: can't continue, aborting
* Fsck could not correct all errors, manul repair needed.